Toothbrush with trapezoidal surface brush head

Abstract

The utility model relates to the technical field of toothbrushes, and discloses a toothbrush with a trapezoidal surface brush head, which comprises a holding rod and a support rod, one end of the support rod is fixedly connected with a brush head base, a groove is arranged in the brush head base, the brush head base is trapezoidal, bristles are arranged at the top of the brush head base, and the brush head base is fixedly connected with the holding rod. Wherein a part of the bristles are embedded in the groove, the other part of the bristles are arranged on protruding faces on the front side and the rear side of the brush head base, the bristles on the two sides of the brush head base are higher than the bristles in the groove, and a connecting assembly is arranged at the other end of the supporting rod. According to the utility model, the high bristles on the protruding surface of the base firstly go deep into slits between teeth for preliminary cleaning and drive the bristles in the grooves to clean the surfaces of the teeth, and the arrangement structure of the staggered bristles works cooperatively, so that the effect of more comprehensively cleaning the teeth is realized, and the problem that the bristles of a plane brush head are consistent in height and not easy to clean is solved. And tooth surface and gap cleaning are difficult to consider at the same time.

Description

Technical Field

[0001] This utility model relates to the field of toothbrush technology, and in particular to a toothbrush with a trapezoidal brush head. Background Technology

[0002] In the field of oral care, the design of a toothbrush, as a daily cleaning tool, directly affects cleaning effectiveness and oral health. As people place increasing importance on oral hygiene, the limitations of traditional toothbrushes in terms of cleaning efficiency and comfort are becoming increasingly apparent. In professional oral care, incomplete cleaning of hidden areas such as between teeth and the gingival sulcus can easily lead to problems like tooth decay and gingivitis. Conversely, excessive brushing or an improperly designed bristle can cause gum damage and enamel abrasion. Therefore, how to achieve comprehensive, efficient, and gentle oral cleaning through innovative brush head structure and bristle layout has become crucial for toothbrush development.

[0003] Existing toothbrushes mainly consist of a handle, a brush head, and bristles fixed to the brush head. The bristles are mostly arranged in a flat pattern and are fixed to the flat surface of the brush head by glue or tufting. Some electric toothbrushes improve cleaning effectiveness through rotation or vibration, but their bristle arrangement is still mainly based on the traditional flat pattern.

[0004] However, existing toothbrushes generally struggle to simultaneously clean both the tooth surface and interdental spaces, severely impacting oral health maintenance. Traditional flat brush heads have uniform bristle heights, which either only clean the tooth surface while neglecting interdental spaces, or cause gum damage due to excessive force applied into the interdental spaces. Even some toothbrushes with varying bristle heights lack targeted cleaning and cannot accurately match the cleaning needs of different areas of the teeth. This allows food debris and plaque to accumulate in interdental spaces and gingival sulci, becoming a major cause of oral diseases, especially in complex areas such as wisdom teeth and molars where incomplete cleaning is more pronounced. Therefore, a toothbrush with a trapezoidal brush head is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a toothbrush with a trapezoidal brush head, which aims to improve the problem that the bristle height of the existing flat brush head is uniform, making it difficult to simultaneously clean the tooth surface and gaps, thus affecting the oral health maintenance effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A toothbrush with a trapezoidal brush head includes a handle and a support rod. One end of the support rod is fixedly connected to a brush head base. The brush head base has a groove inside and is trapezoidal in shape. The top of the brush head base is provided with bristles, some of which are embedded in the groove, and the other part of the bristles are provided on the protruding surfaces on the front and rear sides of the brush head base. The height of the bristles on the sides of the brush head base is higher than that of the bristles inside the groove. The other end of the support rod is provided with a connecting component.

[0008] As a further description of the above technical solution:

[0009] The connecting assembly includes a connecting post, one end of which is fixedly connected to the other end of the support rod, and the outer wall of the connecting post is provided with external threads.

[0010] As a further description of the above technical solution:

[0011] The handle is fixedly connected to a hollow column, and a screw hole is opened inside the hollow column.

[0012] As a further description of the above technical solution:

[0013] The connecting post is slidably connected inside the screw hole, and the external thread is engaged with the inner wall of the screw hole.

[0014] As a further description of the above technical solution:

[0015] A sealing ring is fixedly connected to one end of the support rod, and a sealing groove is opened inside the hollow column, with the sealing ring fitting into the sealing groove.

[0016] As a further description of the above technical solution:

[0017] The brush head base has a skin-friendly layer at the bottom, and the outer wall of the handle has anti-slip texture.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the bristles on the raised base first penetrate into the gaps between teeth for initial cleaning, and then drive the bristles in the groove to clean the tooth surface. This staggered bristle layout works together to achieve a more comprehensive cleaning effect, solving the problem that the uniform bristle height of flat brush heads makes it difficult to clean both the tooth surface and gaps at the same time, thus affecting the oral health maintenance effect, thereby improving the practicality of the toothbrush.

[0020] 2. In this utility model, the external thread on the outer wall of the connecting column is engaged with the internal thread hole of the hollow column of the handle, which drives the support rod and the handle to be assembled or disassembled by rotation. This connection structure achieves the effect of convenient disassembly, carrying or replacement of the brush head, solving the problem that traditional toothbrush heads are difficult to disassemble and replace and the usage scenarios are limited, thereby improving the flexibility of the toothbrush. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a toothbrush with a trapezoidal brush head according to the present invention.

[0022] Figure 2 This is a schematic diagram of the support rod structure of a toothbrush with a trapezoidal brush head proposed in this utility model;

[0023] Figure 3 This is an exploded schematic diagram of the brush head base of a toothbrush with a trapezoidal brush head according to the present invention.

[0024] Figure 4 This is a schematic diagram of the connecting column structure of a toothbrush with a trapezoidal brush head proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of a hollow column structure for a toothbrush with a trapezoidal brush head, as proposed in this utility model.

[0026] Legend:

[0027] 1. Handle; 2. Support rod; 3. Brush head base; 4. Anti-slip texture; 5. Groove; 6. Brush bristles; 7. Skin-friendly layer; 8. Connecting post; 9. External thread; 10. Hollow post; 11. Screw hole; 12. Sealing ring; 13. Sealing groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-3This utility model provides an embodiment of a toothbrush with a trapezoidal brush head, comprising a handle 1 and a support rod 2. One end of the support rod 2 is fixedly connected to a brush head base 3. The brush head base 3 has a groove 5 inside. The brush head base 3 is trapezoidal in shape, and the protruding surfaces of its side walls form a staggered arrangement with the groove 5. The top of the brush head base 3 is provided with bristles 6, some of which are embedded in the groove 5, and the other part of the bristles 6 are provided on the protruding surfaces on the front and rear sides of the brush head base 3. Above, the bristles 6 on the side wall of the brush head base 3 are higher than the bristles 6 inside the groove 5. When the toothbrush contacts the teeth, the bristles 6 on the side wall, which are higher, can first penetrate into the gaps between the teeth to remove food debris, plaque, etc. hidden in the gaps. Then, the bristles 6 inside the groove 5 can closely fit the tooth surface and effectively clean the dirt on the outer surface of the teeth through back and forth friction. The two work together to achieve a comprehensive cleaning of the tooth surface and gaps. The other end of the support rod 2 is provided with a connecting component.

[0030] Reference Figure 1 , Figure 4 and Figure 5 The connecting assembly includes a connecting post 8, one end of which is fixedly connected to the other end of the support rod 2. The outer wall of the connecting post 8 is provided with an external thread 9. A hollow post 10 is fixedly connected to the handle 1, and a screw hole 11 is provided inside the hollow post 10. The connecting post 8 is slidably connected inside the screw hole 11, and the external thread 9 engages with the inner wall of the screw hole 11. By rotating the handle 1 clockwise, the connecting post 8 can be screwed in along the inner wall of the screw hole 11, firmly connecting the support rod 2 to the handle 1. Counterclockwise rotation allows for easy disassembly, facilitating brush head replacement or toothbrush carrying and storage. A sealing ring 12 is fixedly connected to one end of the support rod 2, and a sealing groove 13 is provided inside the hollow post 10. The sealing ring 12 is fitted into the sealing groove 13. The sealing ring 12 is made of elastic rubber. When the connecting post 8 is screwed into the screw hole 11, the sealing ring 12 is embedded in the sealing groove 13 inside the hollow post 10, forming an annular sealing structure. This effectively prevents water, toothpaste foam, etc. from entering the connection part during brushing. The bottom of the brush head base 3 is provided with a skin-friendly layer 7, which is made of soft silicone. During brushing, the skin-friendly layer 7 can conform to the surface of the gums, reducing the direct friction and stimulation of the brush head on the gums and improving the comfort of use. The outer wall of the handle 1 is provided with anti-slip texture 4, which can effectively increase the friction between the hand and the handle 1 when the user holds it, preventing the toothbrush from slipping due to sweaty hands or uneven force during brushing.

[0031] Working principle: When using this toothbrush, during the brushing process, when the toothbrush comes into contact with the teeth, the bristles 6 on the higher base can first penetrate into the gaps between the teeth to perform initial cleaning. Subsequently, the bristles 6 inside the groove 5 can clean the tooth surface. This staggered bristle layout can clean the teeth more thoroughly, both by penetrating into the gaps between the teeth to remove food debris and plaque, and by effectively cleaning the tooth surface, achieving a better oral cleaning effect.

[0032] When the brush head needs to be disassembled for carrying or replacement, one end of the support rod 2 is connected to the handle 1 via the connecting post 8. The external thread 9 on the outer wall of the connecting post 8 engages with the screw hole 11 inside the hollow post 10 on the handle 1. By rotating, the connecting post 8 rotates and screws into the screw hole 11, thereby firmly connecting the support rod 2 and the handle 1 together, facilitating assembly and disassembly. At the same time, the sealing ring 12 at one end of the support rod 2 is embedded in the sealing groove 13 inside the hollow post 10. This sealing structure can effectively prevent moisture from entering the connection part, avoid internal parts from rusting or being damaged due to moisture, extend the service life of the toothbrush, and also ensure the stability of the overall structure of the toothbrush.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A toothbrush with a trapezoidal brush head, comprising a handle (1) and a support rod (2), characterized in that: One end of the support rod (2) is fixedly connected to a brush head base (3). The brush head base (3) has a groove (5) inside. The brush head base (3) is trapezoidal in shape. The top of the brush head base (3) is provided with bristles (6). Some of the bristles (6) are embedded in the groove (5), and the other part of the bristles (6) are provided on the protruding surfaces on the front and rear sides of the brush head base (3). The height of the bristles (6) on both sides of the brush head base (3) is higher than that of the bristles (6) inside the groove (5). The other end of the support rod (2) is provided with a connecting component.

2. A toothbrush with a trapezoidal brush head according to claim 1, characterized in that: The connecting assembly includes a connecting post (8), one end of which is fixedly connected to the other end of the support rod (2), and the outer wall of the connecting post (8) is provided with an external thread (9).

3. A toothbrush with a trapezoidal brush head according to claim 2, characterized in that: The grip (1) is fixedly connected to a hollow column (10), and a screw hole (11) is provided inside the hollow column (10).

4. A toothbrush with a trapezoidal brush head according to claim 3, characterized in that: The connecting post (8) is slidably connected inside the screw hole (11), and the external thread (9) is engaged with the inner wall of the screw hole (11).

5. A toothbrush with a trapezoidal brush head according to claim 4, characterized in that: One end of the support rod (2) is fixedly connected to a sealing ring (12), and a sealing groove (13) is provided inside the hollow column (10), and the sealing ring (12) is fitted into the sealing groove (13).

6. A toothbrush with a trapezoidal brush head according to claim 1, characterized in that: The brush head base (3) has a skin-friendly layer (7) at the bottom, and the handle (1) has anti-slip texture (4) on its outer wall.

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